let pool = require('./mysql/pool')
let data = {
  username: "梁伟俊",
  userpassword: "123456"
}
// let querystr2 = 'insert into sessions value("true")'
// pool.query(querystr2, (err, result) => {
//   if (err) return console.log(err.message)
//   console.log(result);
// })